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Description: Most industrial motors require AC (alternating current) voltage whose polarity oscillates 60 times a second (for a frequency of 60 Hertz) between positive and negative. Single phase AC motors have brushes just like DC motors. Most of them have capacitors to assist starting and to establish the direction of rotation. Changing direction implies changes in the capacitors’ connection. Speed is directly proportional to the applied voltage (just like DC motors). Usage is restricted to low-power uses (home appliances like vacuum cleaners, washing machines, coffee grinders, or power tools like rotary hammers etc.). For higher power requirements, three-phase AC motors are used. These do not have carbon brushes to wear out, their rotors (called squirrel cages) have no electrical connections, thus making them extremely robust and long-lived. Only the stator windings are connected to the power line. They just keep turning as long as their ball bearings are OK. Changing direction requires swapping any two of the three phase lines. Speed control is done by modifying the frequency of the AC delivered to the motor; this can be done using complex devices called AC drives.
Item ID
Item
Price
Quantity
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#2303302
X264 Marathon Electric
Brand Marathon Electric
Model X264
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#2303906
U272 Marathon Electric
Brand Marathon Electric
Model U272
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#2303321
G088 Marathon Electric
Brand Marathon Electric
Model G088
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#2303955
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Brand Marathon Electric
Model Y855A
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#2303336
E2125 Marathon Electric
Brand Marathon Electric
Model E2125
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#2303931
Y826A Marathon Electric
Brand Marathon Electric
Model Y826A
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#2303430
N499 Marathon Electric
Brand Marathon Electric
Model N499
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#2303642
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Brand Marathon Electric
Model W546-P
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#2303888
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Brand Marathon Electric
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#2303636
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Brand Marathon Electric
Model U992A-P
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